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CA COST Action CA15113
Science and Management of Intermittent Rivers and Ephemeral Streams (SMIRES)

More than half of the global river network is composed of intermittent rivers and ephemeral streams (IRES), which are expanding in response to climate change and increasing water demands. After years of obscurity, the science of IRES has bloomed recently and it is now recognised that IRES support a unique high diversity, provide essential ecosystems services and are functionally part of river networks and groundwater systems. However, they still lack protective and adequate management, jeopardizing the water resource at the global scale.

This Action will bring together hydrologists, biogeochemists, ecologists, environmental economists, social researchers and stakeholders from 14 different countries to develop a research network for synthesising the fragmented and recent knowledge on IRES, improving our understanding of IRES ecology, and translating this into science-based, sustainable management of river networks.

Deliverables will be provided through i) research workshops synthesising and addressing key challenges in IRES science, supporting research exchange and educating young researchers, and ii) combined researcher-stakeholder workshops translating improved knowledge into tangible tools and guidelines for protecting IRES and raising awareness of their importance and value in societal and decision-maker spheres.

This Action will be organized within 6 Working Groups to address:

  1. The occurrence, distribution, drivers and hydrological trends of IRES;
  2. The effects of flow alterations on IRES functions and ecosystem services;
  3. The interaction of aquatic and terrestrial biogeochemical processes;
  4. Biomonitoring the ecological status of IRES;
  5. Synergies in IRES research at the European scale, data assemblage and sharing;
  6. IRES management and advocacy training.

(Descriptions are provided by the Actions directly via e-COST.)

General Information*

Chair of the Action:

Dr Thibault DATRY (FR)

Vice Chair of the Action:

Dr Gabriel SINGER (DE)

Science officer of the Action:


Administrative officer of the Action:



Action Fact Sheet

Download AFS as .RTF

Memorandum of Understanding

Download MoU as PDF


Action website:

* content provided by e-COST.
Data is synchronised once per night.


Last updated: 13 November 2015 top of page